arch/arm/mach-mx5/eukrea_mbimx51-baseboard.c

   1 /*
   2  *
   3  * Copyright (C) 2010 Eric Bénard <eric@eukrea.com>
   4  *
   5  * The code contained herein is licensed under the GNU General Public
   6  * License. You may obtain a copy of the GNU General Public License
   7  * Version 2 or later at the following locations:
   8  *
   9  * http://www.opensource.org/licenses/gpl-license.html
  10  * http://www.gnu.org/copyleft/gpl.html
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/serial_8250.h>
  16 #include <linux/i2c.h>
  17 #include <linux/gpio.h>
  18 #include <linux/io.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/irq.h>
  21 #include <linux/fsl_devices.h>
  22 #include <linux/i2c/tsc2007.h>
  23 #include <linux/leds.h>
  24 #include <linux/input/matrix_keypad.h>
  25
  26 #include <mach/common.h>
  27 #include <mach/hardware.h>
  28 #include <mach/imx-uart.h>
  29 #include <mach/iomux-mx51.h>
  30
  31 #include <asm/mach/arch.h>
  32
  33 #include "devices-imx51.h"
  34 #include "devices.h"
  35
  36 #define MBIMX51_TSC2007_GPIO    IMX_GPIO_NR(3, 30)
  37 #define MBIMX51_TSC2007_IRQ     (MXC_INTERNAL_IRQS + MBIMX51_TSC2007_GPIO)
  38 #define MBIMX51_LED0            IMX_GPIO_NR(3, 5)
  39 #define MBIMX51_LED1            IMX_GPIO_NR(3, 6)
  40 #define MBIMX51_LED2            IMX_GPIO_NR(3, 7)
  41 #define MBIMX51_LED3            IMX_GPIO_NR(3, 8)
  42
  43 static struct gpio_led mbimx51_leds[] = {
  44         {
  45                 .name                   = "led0",
  46                 .default_trigger        = "heartbeat",
  47                 .active_low             = 1,
  48                 .gpio                   = MBIMX51_LED0,
  49         },
  50         {
  51                 .name                   = "led1",
  52                 .default_trigger        = "nand-disk",
  53                 .active_low             = 1,
  54                 .gpio                   = MBIMX51_LED1,
  55         },
  56         {
  57                 .name                   = "led2",
  58                 .default_trigger        = "mmc0",
  59                 .active_low             = 1,
  60                 .gpio                   = MBIMX51_LED2,
  61         },
  62         {
  63                 .name                   = "led3",
  64                 .default_trigger        = "default-on",
  65                 .active_low             = 1,
  66                 .gpio                   = MBIMX51_LED3,
  67         },
  68 };
  69
  70 static struct gpio_led_platform_data mbimx51_leds_info = {
  71         .leds           = mbimx51_leds,
  72         .num_leds       = ARRAY_SIZE(mbimx51_leds),
  73 };
  74
  75 static struct platform_device mbimx51_leds_gpio = {
  76         .name   = "leds-gpio",
  77         .id     = -1,
  78         .dev    = {
  79                 .platform_data  = &mbimx51_leds_info,
  80         },
  81 };
  82
  83 static struct platform_device *devices[] __initdata = {
  84         &mbimx51_leds_gpio,
  85 };
  86
  87 static iomux_v3_cfg_t mbimx51_pads[] = {
  88         /* UART2 */
  89         MX51_PAD_UART2_RXD__UART2_RXD,
  90         MX51_PAD_UART2_TXD__UART2_TXD,
  91
  92         /* UART3 */
  93         MX51_PAD_UART3_RXD__UART3_RXD,
  94         MX51_PAD_UART3_TXD__UART3_TXD,
  95         MX51_PAD_KEY_COL4__UART3_RTS,
  96         MX51_PAD_KEY_COL5__UART3_CTS,
  97
  98         /* TSC2007 IRQ */
  99         MX51_PAD_NANDF_D10__GPIO_3_30,
 100
 101         /* LEDS */
 102         MX51_PAD_DISPB2_SER_DIN__GPIO_3_5,
 103         MX51_PAD_DISPB2_SER_DIO__GPIO_3_6,
 104         MX51_PAD_DISPB2_SER_CLK__GPIO_3_7,
 105         MX51_PAD_DISPB2_SER_RS__GPIO_3_8,
 106
 107         /* KPP */
 108         MX51_PAD_KEY_ROW0__KEY_ROW0,
 109         MX51_PAD_KEY_ROW1__KEY_ROW1,
 110         MX51_PAD_KEY_ROW2__KEY_ROW2,
 111         MX51_PAD_KEY_ROW3__KEY_ROW3,
 112         MX51_PAD_KEY_COL0__KEY_COL0,
 113         MX51_PAD_KEY_COL1__KEY_COL1,
 114         MX51_PAD_KEY_COL2__KEY_COL2,
 115         MX51_PAD_KEY_COL3__KEY_COL3,
 116
 117         /* SD 1 */
 118         MX51_PAD_SD1_CMD__SD1_CMD,
 119         MX51_PAD_SD1_CLK__SD1_CLK,
 120         MX51_PAD_SD1_DATA0__SD1_DATA0,
 121         MX51_PAD_SD1_DATA1__SD1_DATA1,
 122         MX51_PAD_SD1_DATA2__SD1_DATA2,
 123         MX51_PAD_SD1_DATA3__SD1_DATA3,
 124
 125         /* SD 2 */
 126         MX51_PAD_SD2_CMD__SD2_CMD,
 127         MX51_PAD_SD2_CLK__SD2_CLK,
 128         MX51_PAD_SD2_DATA0__SD2_DATA0,
 129         MX51_PAD_SD2_DATA1__SD2_DATA1,
 130         MX51_PAD_SD2_DATA2__SD2_DATA2,
 131         MX51_PAD_SD2_DATA3__SD2_DATA3,
 132 };
 133
 134 static const struct imxuart_platform_data uart_pdata __initconst = {
 135         .flags = IMXUART_HAVE_RTSCTS,
 136 };
 137
 138 static int mbimx51_keymap[] = {
 139         KEY(0, 0, KEY_1),
 140         KEY(0, 1, KEY_2),
 141         KEY(0, 2, KEY_3),
 142         KEY(0, 3, KEY_UP),
 143
 144         KEY(1, 0, KEY_4),
 145         KEY(1, 1, KEY_5),
 146         KEY(1, 2, KEY_6),
 147         KEY(1, 3, KEY_LEFT),
 148
 149         KEY(2, 0, KEY_7),
 150         KEY(2, 1, KEY_8),
 151         KEY(2, 2, KEY_9),
 152         KEY(2, 3, KEY_RIGHT),
 153
 154         KEY(3, 0, KEY_0),
 155         KEY(3, 1, KEY_DOWN),
 156         KEY(3, 2, KEY_ESC),
 157         KEY(3, 3, KEY_ENTER),
 158 };
 159
 160 static struct matrix_keymap_data mbimx51_map_data = {
 161         .keymap         = mbimx51_keymap,
 162         .keymap_size    = ARRAY_SIZE(mbimx51_keymap),
 163 };
 164
 165 static int tsc2007_get_pendown_state(void)
 166 {
 167         return !gpio_get_value(MBIMX51_TSC2007_GPIO);
 168 }
 169
 170 struct tsc2007_platform_data tsc2007_data = {
 171         .model = 2007,
 172         .x_plate_ohms = 180,
 173         .get_pendown_state = tsc2007_get_pendown_state,
 174 };
 175
 176 static struct i2c_board_info mbimx51_i2c_devices[] = {
 177         {
 178                 I2C_BOARD_INFO("tsc2007", 0x49),
 179                 .irq  = MBIMX51_TSC2007_IRQ,
 180                 .platform_data = &tsc2007_data,
 181         }, {
 182                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 183         },
 184 };
 185
 186 /*
 187  * baseboard initialization.
 188  */
 189 void __init eukrea_mbimx51_baseboard_init(void)
 190 {
 191         mxc_iomux_v3_setup_multiple_pads(mbimx51_pads,
 192                                         ARRAY_SIZE(mbimx51_pads));
 193
 194         imx51_add_imx_uart(1, NULL);
 195         imx51_add_imx_uart(2, &uart_pdata);
 196
 197         gpio_request(MBIMX51_LED0, "LED0");
 198         gpio_direction_output(MBIMX51_LED0, 1);
 199         gpio_free(MBIMX51_LED0);
 200         gpio_request(MBIMX51_LED1, "LED1");
 201         gpio_direction_output(MBIMX51_LED1, 1);
 202         gpio_free(MBIMX51_LED1);
 203         gpio_request(MBIMX51_LED2, "LED2");
 204         gpio_direction_output(MBIMX51_LED2, 1);
 205         gpio_free(MBIMX51_LED2);
 206         gpio_request(MBIMX51_LED3, "LED3");
 207         gpio_direction_output(MBIMX51_LED3, 1);
 208         gpio_free(MBIMX51_LED3);
 209
 210         platform_add_devices(devices, ARRAY_SIZE(devices));
 211
 212         mxc_register_device(&mxc_keypad_device, &mbimx51_map_data);
 213
 214         gpio_request(MBIMX51_TSC2007_GPIO, "tsc2007_irq");
 215         gpio_direction_input(MBIMX51_TSC2007_GPIO);
 216         set_irq_type(MBIMX51_TSC2007_IRQ, IRQF_TRIGGER_FALLING);
 217         i2c_register_board_info(1, mbimx51_i2c_devices,
 218                                 ARRAY_SIZE(mbimx51_i2c_devices));
 219
 220         imx51_add_sdhci_esdhc_imx(0, NULL);
 221         imx51_add_sdhci_esdhc_imx(1, NULL);
 222 }